US3226824A

US3226824A - Shaving head having interlocking means for the outer shearing member

Info

Publication number: US3226824A
Application number: US304088A
Authority: US
Inventors: Jacob L Kleinman
Original assignee: Individual
Current assignee: Individual
Priority date: 1963-08-23
Filing date: 1963-08-23
Publication date: 1966-01-04
Anticipated expiration: 1983-01-04

Description

Jan. 4, 1966 J. L. KLEINMAN 3,223,824

SHAVING HEAD HAVING INTERLOCKING MEANS FOR THE OUTER SHEARING MEMBER Filed Aug. 23, 1963 INV EN TOR.

United States PatentU 3,226,824 SHAVING HEAD HAVING INTERLOCKING MEANS FOR THE OUTER SHEARING MEMBER Jacob L. Kleinman, Hotel Kimberly, 203 W. 74th St.,

New York, N.Y. Filed Aug. 23, 1963, Ser. No. 304,088 3 Claims. (Cl. 30-4332) This invention relates to the construction of shaving unit for shaving implements in general, and more particularly so to shaving implements known as electric razors or dry shavers, comprising an outer cutter member and a separate carrier each provided with integral slidable interlocking means for becoming automatically interlocked directly with each other to hold such outer cutter member secured firmly in its position upon the carrier.

A primary object of this invention is to provide an assembled shaving unit comprising a carrier and an as sembled shaving unit wherein such shaving unit is secured to the carrier by integral locking means other than screwthreaded elements.

Another important object of this invention is the provision of integral means for slidably interlocking automatically the outer cutter member into its position directly upon the carrier. p p v i A further important object of this invention is the provision of an outer cutter member of a shaving unit provided with resilient means for engagement with interlocking means of the carrier for being secured firmly into its position.

For clarification purposes lowing: i

In the present type of removable shearing sections, wherein the assembled shaving unit is carried by a carrier, the structure is so complicated that precisional workmanship is required in order to secure the shaving unit to the carrier. The screw-threads for securing the shaving unit to the carrier, or parts of the material, are of such fine or small pitch that even precisional workmanship does not always prevent breakage; this matter, naturally, increased the cost of manufacturing shaving implements, and presents a difficult and vexing problem to the dryshaving implement industry.

Whereas, in accordance with my invention, I produce a shaving unit provided with integral flange portions adapted to be positioned through openings in the carrier for slidably engaging the under-face thereof to become interlocked with means of the said carrier, so that by just placing the unit upon the carrier in a suitable position and moving such unit into desired direction will interlock the unit automatically with the carrier without any I wish to point out the foldifliculty or use of any instrument; this operation is of such a simple nature that it does not require precisional workmanship, nor any precisionally built elements, to accomplish this feature, thereby reducing greatly the cost of manufacturing dry-shaving implements.

To illustrate the ordinary commercial utility of my shaving implement in daily life, an implement made in accordance with my invention, of whatever style or type it may be made, could be utilized to great advantage; the fact that my shaving unit can be so easily secured and/ or removed from its carrier, may urge the user to buy such shaving unit and personally secure same to his carrier of his shaving implement; thereby eliminating servicing expense; thus reducing upkeep cost of a dry shaver, and eliminating an hindrance to the expansion of the dryshaver industry.

Thus, a shaving implement comprising a carrier and a shaving unit, produced in accordance with my invention, fulfills a long-felt need in the dry-shaver or electric razor 3,226,824 Patented Jan. 4, 1966 industry. My herein invention teaches a new and unique form of structure and solves one of the most vexing problems in the art of making assembled shaving units for use in connection with dry-shavers. My herein invention represents a practical and useful structure and can be utilized to great advantage in connection with the manufacturing of electrically operated or dry shaving implements.

The objects of my invention are attained by a novel construction which will be hereinafter illustrated and described in the drawing in connection with a specific embodiment of the invention.

In the accompanying drawing in which such specific embodiment of my invention is illustrated, and described in the annexed specification, wherein the accomplishment of the above and other objects of the invention will be readily understood on reference to the herein, wherein:

FIG. 1 is a perspective view of the outer cutter member of my shaving unit, showing the floor or under portion thereof being provided with two spaced apart flange sections;

FIG. 2 is a perspective view, partly broken away, showing the flange sections in interlocked position with portions located at the underface of the carrier;

FIG. 3 is a perspective view of a portion of my carrier showing the underface of the carrier provided with means for becoming interlocked with the flange sections of the outer cutter member of my shaving unit;

FIG. 4 is a fractional cross-sectional view showing the manner in which the interlocking means operate during interlocking movement; and

FIG. 5 is a fractional cross-sectional view, similar to that shown in FIG. 4, showing the interlocking means in interlocked position.

I am showing the several figures or views by way of example for illustrative purposes and for a better and clearer understanding of my invention, and not for limitation purposes.

The size of the parts shown'in the drawings herein, and the spacing therebetween, being exaggerated for clarification purposes only.

Referring more particularly to the drawing, in which similar reference characters identify similar parts in the several views, in the novel structure of my invention.

Arrow A indicates the outer cutter member of my shaving unit (inner cutter member not shown), such outer cutter member having a shear-face b and a floor, under face, or lower portion b. The floor portion b is provided with a resilient or springable flange sections b" each having an opening 0 and a curved lip-portion 0'. Such flange section b" may be shaped or formed in any suitable style or manner; may be situated in any desirable location, and may be integral with the outer cutter member, for example, cut-out of the material of the lower floor portion b as suggested at ba, or formed in any other suitable manner, or may be constructed of other suitable material and secured to the bottom portion b by suitable means; for example, friction fit, welding, rivets or the kind.

The carrier C is provided with openings C and with projecting portions C. These openings C are of a size permitting the flange sections 12 to enter therein. The front portion or lip O of each of the flange sections 12" are of a size smaller than that of their respective rear portions d to facilitate their entrance into the individual openings C of the carrier or base section C.

To attach my shaving unit to my carrier all one has to do is to place the outer cutter member (including the inner cutter member) upon the carrier in a manner having the curved lip-portions O of the flange sections b" positioned within the openings C and engage the outer face of the carrier C, and then move such outer cutter member longitudinally into desired position; during such movement the lip-portion will engage directly the projecting portion C and cause the flange section b to ride upon such portion C as shown in FIG. 4 (arrow k); and when the opening 0 will reach the projecting portion C it will entrap such portion C and cause the flange section b to snap into position as shown by arrow L (FIG. 5), thus locking the shaving unit in its position directly upon the carrier C.

The curved portions d and d of the flange section b" will provide spring-tension or resiliency for the action of such flange section h" during its movement for being interlocked in its position.

By raising the flange portion b from its interlocked position the outer cutter member arrow A may be easily removed from the carrier C.

It is thus clear that I have invented a practical and useful means for securing a shaving unit structure upon a carrier in an easy and safe manner.

The above has been shown and explained by way of example and not for limitation purposes. For example; if desired, the interlocking structure may be arranged in a different manner, wherein the flange section b may be provided with a suitable projection for becoming interlocked with an opening, or other suitable means, on the carrier C. Or the flange sections may be differently arranged, or other means may be utilized for slidably locking the shaving unit in its position upon the carrier, particularly so, wherein the user can place his shaving unit upon his carrier and in a slidable movement interlock such shaving unit upon its seat on the said carrier for shaving purposes and be held in a secured manner thereon.

From the above it is evident that I have invented and perfected a shaving implement structure of a new and unique combination of parts not known heretofore; a combination of parts performing new and desirable functions, a structure which is practical and useful; and although I have shown certain preferred forms or illustrations in order to explain and describe the novelty of my invention, yet, by showing such structure, I do not, by any means, limit myself to these structures, nor to the terms used in describing same, as they are for illustrative purposes only. Various suggestions and changes of structure to bring about the functions herein-above referred to may 4 be resorted to, and I desired it to be understood that I have same in mind when showing and describing this invention, and seek protection by Letters Patent. And a1- though I have mentioned in describing this invention of what material certain parts may be made, how they may be formed, shaped or styled, and how they may be assembled, yet I desire it to be understood that this structure, or any part thereof, may be made of any suitable material, and shaped, formed, styled or arranged in any desirable manner, and assembled in any convenient way, and that various changes may be resorted to without departing from the spirit of this invention.

I claim:

1. A shaving unit comprising an outer cutter member provided with means to support a cooperating movable cutter member, said outer cutter member having a shear face and a base portion, said base portion having flange sections, each of said flange sections having an opening, a carrier for said outer cutter member, said carrier having openings and projecting portions extending from said openings, each of said flange sections positioned in one of said carrier openings and engaging the outer face of said carrier, said projecting portions extending in the openings in said flange sections, thereby interlocking said projecting portions and sections to hold the outer cutter memer in position upon said carrier.

2. In a structure as set forth in claim 1, wherein each of said flange sections having an upraised lip portion for leading the said flange section into position towards the said outer face of said carrier.

3. In a structure as set forth in claim 1, wherein the said flange sections are each yieldable to a degree facilitating its movement towards the said interlocking operation.

References Cited by the Examiner UNITED STATES PATENTS 1,828,895 10/1931 Hanley 310-47 1,922,824 8/1933 Schick 310-47 2,502,048 3/1950 Kahn 310-47 2,562,104 7/1951 Kobler et a1 43.92 2,742,694 4/1956 Stone 3043.5 2,758,370 8/ 1956 Gray et al. 30-43.92 2,844,869 7/1958 Kahn 30-4392 2,930,119 3/1960 Kleinman 3043.92 2,959,854 11/1960 Wahl 3043.92 3,111,754 11/1963 Locke 3041.6

WILLIAM FELDMAN, Primary Examiner.

MYRON C. KRUSE, Examiner.

Claims

1. A SHAVING UNIT COMPRISING AN OUTER CUTTER MEMBER PROVIDED WITH MEANS TO SUPORT A COOPERATING MOVABLE CUTTER MEMBER, SAID OUTER MEMBER HAVING A SHEAR FACE AND A BASE PORTION, SAID BASE PORTION HAVING FLANGE SECTIONS, EACH OF SAID FLANGE SECTIONS HAVING AN OPENING, A CARRIER FOR SAID OUTER CUTTER MEMBER, SAID CARRIER HAVING OPENINGS AND PROJECTING PORTIONS EXTENDING FROM SAID OPENINGS, EACH OF SAID FLANGE SECTIONS POSITIONED IN ONE OF SAID CARRIER OPENINGS AND ENGAGING THE OUTER FACE OF SAID CARRIER, SAID PROJECTING PORTIONS EXTENDING IN THE OPENINGS IN SAID FLANGE SECTIONS, THEREBY INTERLOCKING SAID PROJECTING PORTIONS AND SECTIONS TO HOLD THE OUTER CUTTER MEMBER IN POSITION UPON SAID CARRIER.